| # SPDX-License-Identifier: GPL-2.0-only | |
| menuconfig HTE | |
| bool "Hardware Timestamping Engine (HTE) Support" | |
| help | |
| Hardware Timestamping Engine (HTE) Support. | |
| Some devices provide a hardware timestamping engine which can | |
| timestamp certain device lines/signals in realtime. It comes with a | |
| benefit for the applications needing accurate timestamping event with | |
| less jitter. This framework provides a generic interface to such HTE | |
| providers and consumer devices. | |
| If unsure, say no. | |
| if HTE | |
| config HTE_TEGRA194 | |
| tristate "NVIDIA Tegra194 HTE Support" | |
| depends on (ARCH_TEGRA || COMPILE_TEST) | |
| depends on GPIOLIB | |
| help | |
| Enable this option for integrated hardware timestamping engine also | |
| known as generic timestamping engine (GTE) support on NVIDIA Tegra194 | |
| and later systems-on-chip. The driver supports 352 LIC IRQs and 39 | |
| AON GPIOs lines for timestamping in realtime. | |
| config HTE_TEGRA194_TEST | |
| tristate "NVIDIA Tegra194 HTE Test" | |
| depends on (HTE_TEGRA194 || COMPILE_TEST) | |
| help | |
| The NVIDIA Tegra194 GTE test driver demonstrates how to use HTE | |
| framework to timestamp GPIO and LIC IRQ lines. | |
| endif |